CareerPlan

Application Security Research Engineer

Barcelona, SpainFull-time2026-08-18 → 2026-11-04

Core

Conduct offensive security testing, automated exploit discovery, and advanced application security research to improve product security posture.

Role type

Senior IC application security research engineer (offensive security)

Builds

Penetration testing tools, AI agents, and automated security testing frameworks

Domain

Cybersecurity, offensive security, application security

Required skills

Penetration testing, exploit development, fuzzing, AI/LLM security testing, tool development, vulnerability analysis, root cause analysis, secure architecture knowledge, CI/CD integration, cloud-native security

Preferred skills

Automated PT/fuzzing pipelines, SSDLC tools, security research publications, open-source contributions

Technologies

Burp Suite, Metasploit, Kubernetes, microservices, containers, CI/CD pipelines, AI Agents

Responsibilities

Plan and execute advanced penetration testing campaigns; Develop tools and frameworks for scalable security testing and fuzzing; Analyze vulnerabilities, perform root cause analysis, and develop proofs of concept; Collaborate with engineering teams to reproduce, triage, and fix vulnerabilities; Contribute to security research publications, CVE submissions, and industry knowledge sharing; Continuously evolve internal testing capabilities using modern tooling and AI-assisted approaches.

Seniority

Senior, hands-on IC